- enhanced Project Euler mirror.
- enigma (I, M3, M4) machine emulator for the www.
Royal Flags Wave Kings Above
- a one-page brief explanation of a WWII Enigma machine inner workings and operation for the
The Enigma machine - A journey into secret German radio communications
Research and Publications
Orbit determination and ground track visualization of an artificial satellite in the restricted two-body problem
Rhein-Waal University of Applied Sciences